Apparatus for sizing and flanging sheet metal articles



2 Sheets-Sheet 1 W. IRVEN Filed April 16, 1936 Aug. 3, 1937.

w. IRVEN 2,689,119

Aug. 3, 1937.

APPARATUS FOR SIZING AND FLANGING SHEET METAL ARTICLES 2 Sheets-Sheet 2 Filed April I6, 1936 V INVENTOR wk? a! f/ we BY n 9% rd ATTORNE .5-

Patented Aug. 3, 1937 UNITED sTArEs APPARATUS FOR SIZING AND FLANGING SHEET METAL ARTICLES William Irven, Lakewood, Ohio, assignor to The Standard Oil Company (Ohio), Cleveland,

Ohio, acorporation of Ohio Application April 16, 1936, Serial No. 74,807 12 Claims. (01. 153-80.5)

This invention relates to the manufacture of hollow sheet metal Ware articles, as for instance container bodies for lubricants; and it is amon the objects of theinvention to accurately size 5 the internal lumen of the articles; Another object is the formation of desired end flanging. Other objects and advantages will appear as the description proceeds.

To the accomplishment of the foregoing and related ends, the invention, then, comprises the features hereinafter fully described, and particularly pointed out in the claims, the following description and the annexed drawings setting forth in detail certain illustrative embodiments of the invention, these being indicative however, of but a few of the various ways in which the principle of the invention may be employed.

In said annexed drawings:

Fig. 1 is a side elevational view of an embodiment of the invention; Fig. 2 is a plan 'view and Fig. 3 an end elevation, parts being broken away;"Fig. 4 is an enlarged horizontal sectional view on a line cutting chiefly through the axial plane of the ram; and Fig. 5 is a fragmentary further enlargement thereof showing the: parts in different position. 1

Referring more particularly to the drawings, there is shown a frame F; whichv may comprise a suitable bed and support legs; and 'reciprocatively'mounted on the frame is a ram 3' slidably carried in a bearing 4, the latter being suitably secured to the bed, as by clamp-brackets 5. As a means for reciprocatively moving the ram, 'a suitable drive may be applied, for instance a pitman 6, with adjusting means "I for regulating the effective length of the ram, and a driving crank 8 operating the pitman, being carried by a crank wheel 9. In order to preventtoo free-.over-run of the crank wheel at the end of a desired cycle, a damping means is desirably applied, such as a brake bearing upon the periphery of the Wheel, and having a brake-shoe l0 and .a pressurespring ll, screw-threadedmeans l2, l3; serving to control the amount of pressure on the brakeshoe. The shaft I 4 'of'the crank wheel may be driven for instance by sprocket chain l5,"through suitable reduction gearing from a motor 16, and convenient control of thel'atter may be had by a controller box C within the reach of the machineoperator. Interposed between the motor-drive and the crank wheel shaft is a clutch, whose'detail may vary as preferred, but'which may com,- prise a:clutch spring l8 and engaging clutch members [9, 20, while a'hold out roller 2| is arranged to be moved up and'down. into position to engage the clutch member I!) and hold it out, according as the control-lever is operated. The latter may comprise a hand lever 23 fulcrumed at 24 and pivotally connected at 25 to a secondary lever 26 which is fulcrumed at 21 and pivotally connected at 28 to a stem carrying the roller. Asuitable spring 29 serves to normally hold the lever 26 with the clutch hold out roller 2| in its upper position. As an additional refinement, the control handle 23 may have a stop-lock 30 operatedby a control handle 3| through the intermediary of a rock shaft 32.

The end of the ram 3 is provided with a sizingreamer 35 which is dimensioned to accurately expand to uniform diameter and thereby size, a. cylindrical sheet metal blank 36, Fig. 5, being operated on. For lubrication of the reamer, an oil drip means 31, with suitable regulator 38 is arranged such as to apply oil to the sizing-reamer 35 when it is back in its free position, as illustrated in Fig.1. Surplus'oil may be caughtby a suitable receptacle 39 and be diverted by a drain 4|] to a suitable point of collection.

Carried also by the ram 3 is a blank-engaging or drive collar member 42, this having a slight slidable range of movement also on the projecting tubular end 43 of the ram bearing member 4. The collar 42 is desirably provided with an annular groove 44 for more accurately holding and controlling the end of the sheet metal cylindrical blank 36. Forward movement of the blank-drive collar 42 is provided in connection with the ram, and desirably may involve push rods 45 slidably mounted in the supports 5, and having tappets 46 with set-screw adjustment 4'! whereby to control the extent of movement of the push rods relative to the supports 5 in their excursion. By

means of a collar 48 on the ram, preferably with screw-threaded mounting thereon, and a setscrew 49 to-retain the adjusted position, the collar 48 may be regulated in its setting on the ram, so

as to engage the push rods in controlled tim- I ing and amount for thrusting the collar 42 and the hollow cylindrical blank 36 forward against an end-abutment 50 which is stationarily held on the frame. By the provision of an annular flange-turning groove 5| on the abutment member, a flange may be formed on the end of the sheet metal blank at the same time that it is sized internally. A convenient mounting for the abutment member 50 may comprise a holding bolt 52 in support bracket 53. Interposed between the abutment member 50 and the sizing-reamer 35, in open position, is a work holderorwork support 55, suitably notched as at 56 to permit easy handling of the blank, the work support being in a general form of a shallow trough axially oriented with respect to the line of travel of the ram. By the provision of a stripping abutment 51 on the end of the work support, the flanged tube as formed by the stroke of the ram is immediately loosened from the ram on its return movement, and may be quickly lifted aside by the operator.

The operation involved is readily understood from the foregoing. With the motor started by pressing the appropriate starter button b on the controller box, and the clutch lever.23 thrown down to allow the clutch to engage, and the ram 3 being in its rear position, the operator lays a cylindrical or tubular blank 36 in the work support 55, and the ram then advances, pushing the sizing-reamer 35 into the lumen-0f the blank and the end of the blank is steadied by the advance of the collar 42 and at its far end by engagement with the abutment member 50. The sizingreamer 35 is thus pushed progressively through from one end to the other, and the walls of the blank slightly expanded and sized to the standard diameter. Toward the end of the movement, the' push collar 48 on the ram strikes the push rods 45 and causes these to force the collar 42 and the blank 36 forwardly sufficiently to form .a flange on the end of the blank as it follows the contour of the abutment member 50 with its fianging shaper 5|. The ram then recedes, pulling the sizing-reamer 35 out of the tube as the flange of the latter strikes the stripper-'51, and the tube is left free in the trough'of the work support,- whereupon the operator may throw. it aside and place a fresh blank in position.

Other modes of applying the principle ofthe invention may be-employed, change being made as regards the details described, provided the features stated in any of the following claims, or the equivalent of such, be employed.

I therefore particularly pointout and distinctly claim as my invention: a

1. In mechanism of the character'described,

a frame; a ram reciprocatively mounted thereon;

push rods'for said blank-drive collar slidably mounted'on the framing along said ram; tappets on said push rods regulable with respect to their mounting; a push rod collar on said ram and means for regulating its position on the ram; a stationary abutment member to engage the end of a cylindrical blank being operated thereon; flange-turning means on said abutment member; a work support between said abutment member and said ram; and stripping means on said work support.

2. In mechanism of the character described, a frame; a ram reciprocatively mounted thereon; means for reciprocating said ram, including a crank wheel and drive means and control therefor; means for damping over-run of the ram; a sizing reamer on the free end of the ram; means for lubricating said sizing reamer, including a regulable oil drip thereover and a catch receptacle underneath; a blank-drive collar slidably mounted on said ram; push rods for said blankdrive collar slidably mounted on the framing along said ram; tappets on said push rods regulable with respect to their mounting; a push rod collar on said ram and means for regulating its position on the ram; a stationary abutment member to engage the end of 'a' cylindrical blank being operated thereon; flange-turning means on said abutment member; a work support between said abutment member and said ram; and strippingmeans on said work support.

,3. In mechanism of the character described, a frame; .a ram reciprocatively mounted thereon; means for reciprocating said ram, including a crank wheel and drive means and control therefor; means for damping over-run of the ram; a sizing reamer on the free end of the ram; means for lubricating said sizing reamer; a blank-drive collar slidably mounted on said ram; push rods for said blank-drive collarslidably mounted on the framing; along said ram; tappets on saidpush' rods regulable with respect .to their mounting;- a push rod collar on said ram and means for regulating its position on the ram; a stationary abutment member to engage the end of a cylindrical blank being operated thereon; flange-turning means on said abutment member; a work support between said abutment member and said ram; and stripping means-on said' work support;

4. In mechanism of. the character described a frame, a ram reciprocativelymounted thereon; means for reciprocating said'ram, including. :a crank-wheel and drive means and control there-i for; means fordamping over-run of the ramps. sizing reamer on the free end of the ramymeans for lubricating said sizing reamer; a blank-drive collar slidably mounted on said ram;':push rods forsaid blank-drive collar slidably mo'untedJon the framing along said ram; tappets on said push rodsuregulable with respect to their mounting; a push rod collar on said ram; a stationary;abutment member to engage the end of a cylindrical blank being operated thereon; flange-turning means on said abutment membenaa work support between said abutment memberand said rampand stripping means on' said work'support.

. 5..In mechanism of the character described, .a frame; a ram reciprocatively mounted thereon; means for reciprocating said ram, including a crank wheel. and drive means and control there, for; means for damping over-run of the ram; a sizing reamer on the free end. of the ramymeans for lubricating said sizing reamer; ablank-drive collar slidably mounted on said ram; push rods for'said blank-drive collar slidably mountedon the framing alongsaid ram; a push .rod collar on said ram; a stationary abutmentmember to engage the end of a cylindrical blank being operated' thereon; flange-turning means on said abutment member; a work support betweenisaid abutment member and said ram; andstripping means on said work support. I

6. In mechanism of .the character described, a frame; a' ram reciprocatively mounted. thereon; means for reciprocating said ram, including a crank wheel and drive means and control therefor; means for damping over-run of the ram, a sizing reamer on the free end of the ram; means forlubricating said sizing reamer; a blank-drive collar slidably mounted onsaid ram; a stationary abutment member to engage the end oi'va cylindrical blank being operated'thereon; flange.- turning means on said abutment member; a' work support between saidabutment member and said ram; and stripping means on said work support.

7. In mechanism of the character described, a frame; a ram reciprocatively mounted thereon; means for reciprocating said ram, including a crank wheel and drive means and control therefor; means for damping over-run of the ram; a sizing reamer on the free end of the ram; means for lubricating said sizing reamer; a blank-drive collar slidably mounted on said ram; a stationary abutment member to engage the end of a cylindrical blank being operated thereon; flangeturning means on said abutment member; and a work support adjacent.

8. In mechanism of the character described, a ram reciprocatively mounted; means for reciprocating said ram; a sizing reamer carried by said ram; means for lubricating said sizing reamer; a blank-drive collar on said ram; a stationary abutment member to engage the end of the cylindrical blank being operated thereon; and flange-turning means on said abutment member.

9. In mechanism of the character described, a ram reciprocatively mounted; means for reciprocating said ram; a sizing reamer carried by said ram; a blank-drive collar on said ram; a stationary abutment member to engage the end of a cylindrical blank being operated on; and flangeturning means on said abutment member.

10. In mechanism of the character described, a ram reciprocatively mounted; means for reciprocating said ram; a sizing reamer carried by said ram; 9. drive collar slidable on said ram for forcing a cylindrical blank axial-wise; push rod means for said drive collar; means movable with said ram for regulably actuating said push rod means; and an abutment member to engage the end of the cylindrical blank being operated on.

11. In mechanism of the character described, an internal sizing reamer; a reeiprocative member carrying said reamer; drive collar means on said reeiprocative member for forcing a cylindrical blank axial-wise; means for regulating the throw of said drive collar means relative to said reeiprocative member; and a fianging anvil to form a. flange on the ends of the cylindrical blank being sized.

12. In mechanism of the character described, an internal sizing reamer; a reeiprocative member carrying said reamer; regulable throw drive collar means actuable by said reeiprocative member for forcing a cylindrical blank axial-wise; an

abutment member to engage the end of the cy- 1 WILLIAM IRVEN. 

